The term 'chiding syllable' refers to a sound or word used to express disapproval or disappointment. Two common examples of chiding syllables are 'TUT' and 'TSK'. Both of these syllables are used to indicate disapproval or disappointment in a situation, and they are often used in place of more explicit language. They are also used to express frustration or annoyance, and can be used as a form of reprimand.